Deep Groove Ball Bearings FAG 627 -2Z

The FAG 627-2Z deep groove ball bearing, with a 7 mm bore, 22 mm outer diameter and cover plates on both sides, offers protection against coarse dirt particles.

This single-row FAG 627-2Z deep groove ball bearing primarily accommodates radial loads whilst also supporting low axial forces in both directions. The inner and outer rings, as well as the balls, are made from case-hardened 100Cr6 rolling-bearing steel. With its compact dimensions – a 7 mm bore, 22 mm outer diameter and 7 mm width – the design fits neatly into housings whilst saving space. A sheet steel cage guides the rolling elements evenly into the deep grooved raceways.

What is the 627-2Z deep-groove ball bearing suitable for in practice?

Compact roller bearings of this size are suitable for precision shaft mountings where minimal installation space and low friction torque are required. As the rolling elements are protected on both sides by non-contact gap seals, the rotational resistance remains low, which facilitates smooth running at higher speeds. The component is designed for a temperature range of -30 to +120 degrees Celsius and retains its dimensional stability within the bearing assembly.

What are the advantages of the double-sided 2Z cover on this bearing?

The two metal cover plates seal the interior on both sides and keep dirt and larger dust particles away from the raceways. As the sheet metal covers do not come into contact with the inner ring, no additional heat is generated due to friction during continuous operation. The bearing is manufactured with standard radial clearance and to the standardised tolerance class P0 or ABEC 1. The cylindrical outer ring, which has no groove or flange, allows for direct mounting in a smooth housing bore.